Metal-molding apparatus



May 1, 1923. 1,453,861

H. c. ZENKE METAL MOLDING APPARATUS Filed Nov. 14, 1921 I 2 Sheets- Sheet 1 HHHIIHI- l WW I I ATTORY5.

H. C. ZENKE METAL MOLDING APPARATUS Filed Nov. 14 I921 2 SheetsfSheet 2 INVENTOR TO vs I Patented May 1, 1923.

UNITE; STATES P ATEN HENRY CQZENK'E, 02F RICHMOND H'ILL, NEW YORK.

' METAL- MOLDING errennmus;

Application filed November 14, 1921. Serial m. 514,918.'

To allwkom'itmayco nc ern."

-Be it known that L'HENRY O. ZENKn, a citizen of the United States, residing "in Richmond Hill, county of Queens, State of 5 New York, have invented an Improvement in .Metal-Mold-ing Apparatus (Case A),

off "which the following is a specification.

This invention relates to apparatus. for molding metals and -more particularly to apparatus for casting type lead, such as is.

used in the printing art, into ingots or pigs.

One-of theobjects of this invention is to provide a. practical "and "durable metal molding'apparatus to. facilitate'the casting of type metal, for example, into pigs of convenient sizeand shape, particularly of such sizes as are adapted to be fed to type V'cast-.

in turn including two mold members proper,-

each having an interior space of the size and shape it is intended to give the cast pig. A single intermediate or closing member is interposed between these two mold members, suitable pins in the two main mold members entering corresponding openings in thecommon interposed closing member. 7 eral parts are thus upon their assembly automatically positioned in proper relation -to one another to permit the application of a suitableclamping device to hold the parts in assembled relation. The single member interposed between the two main mold members thus functions not only to align and to register the two main members, but 1 also to form therewith two spaces or molds in which two pigs may be simultaneously cast. An aperture in the lower part ofthe interposed common closing member affords a communicating passage between the two 1 main molds so that molten metal poured The sev into one space-will 'fill'np'the i 7 other; By [making the I common cl'osing member which separates the "two rad-1a.

spaces of thin material and making. the intercommunicating aperture relatively small, the two ingots upon cooling may "be readily broke rapid cooling of the cast. in'gotsis assured. The accompanying draw ngs show "an embodiment of my invention.

Figure 1 is a perspective "view of the "two main mold members in disassembled relation; j

Figure "2 is a perspective view of the com? mon closing member of the mold adapted to be interposed between the two main mold members; Figure 3 a p"lan view "o'fa clamping *de vice for ,hol

tion';"

Figure 4: is a plan view of a' haind totil t o several a-as'; and

facilitate the handling manuall ef-rfthe' v v apart and the resulting pro ection, remaining upon each "ingot by reasonv of such separation upon taking manna apart, is of 'such smalhdimen'si'ons that its presence is not objectionable. JBy the main .moid members withia siiitable 1111111 ber of coolingvanes' on their eiiterionfthe ding the parts in {assembled Felix-' Figure 5 -is aperspective vieww' shorving-tlre several ems iniassembled relation.-

['Jike reference 'characters Trefer to partsfithroughout'lthe several views in the drawingsii f; 7

Referring'now to'the drawings, :andimore particularly to it Will-aloe.lnoted*th ait I have provided twomainflmold members 10 and 11 hose=construction,' ian-rorderto si Inplif'y the construction andfmanufactnrems well 1 :as the subsequent assembly thereof, sis

substantially identical and prefenably met-rical. Accordingly, only VVm-ain T-m'old member will beidesc-ri'bed in detail. The mainmold members, Whose construction is typified by that of the member 10 to; be -described indetail, are preferably made of castiron and their several parts 'areso related to the :main portion thereof :a s to facilitate the casting .of the main member 'It will Ihe noted that the main body portion .of the main mold member 10'is made to, prov de.

three walls and abottom-,portior r so related H 1 l construction, as will be seen more clearly hereinafter, is for the purpose of permitting a cast pig to be more readily disengaged from and discharged from the mold in which it was cast.

In proximity to the upper end of the wall forming portion 13 there is integrally formed therewith a boss 15 in which is rigidly mounted a pin 16. A similar construction is provided in proximity to the lower exterior portion of the wall forming member 12, a boss 17 being cast therewith to mount a pin 18. Extending in a lateral and rearward direction and integrally formed wlth the wall forming portion 13 is a leg 19 positioned at the extreme lower end of the main mold member and similarly formed and related to the wall forming portion 12 is the supporting leg 20. At the upper end of the main mold member 10 and extending in a rearward direction from the rear wall forming portion 14 isa rib 21 adapted to form with the legs 19 and 20 a third point of support for the mold member 10 to support the mold member 10 when laid over upon the floor. The wall forming portions 12 and 13 are each provided with a series of cooling vanes 22 to increase the exterior exposed surface, thus to facilitate rapid cooling. Extending longitudinally and substantially centrally of the rear wall forming portion 14 is a reinforcing rib 23 merged substantially at its center into the supporting boss or abutment 24. The abutments 24 on each mold member serve as the points of application of a suitable clamping device to hold the several parts in assembled relation, as will be more clearly hereinafter described, and the longitudinally extending ribs 23 function to distribute substantially uniformly the clamping effect of the clamping device throughout the entire mold member.

As hereinbefore noted, the cooperating main mold member-11 is substantially identical'in construction and is, moreover, symmetrical with the mold member 10 when each is considered with respect to the vertioal plane passing through the reinforcing rib 23 of each member. It may further be noted that by reason of such construction the pins 16 and 18 in one mold member will be diagonally opposite while thepins 16 and 18 of the cooperating member 11, when placed'in assembled relation to the mold member 10 will be similarly diagonally opposite, the fourpins representing in effect the four corners of a rectangle.

In order to facilitate the casting of a plurality of pigs simultaneously, I have provided a common separating or closing member 25 (see Fig. 2) which is interposed between two main mold members lO and 11 thus to form on each side thereof a separate mold for receiving the molten metal. The common mold closing member 25 is preferably made of a relatively thin sheet material, such as sheet steel for example, and is provided with two pairs of spaced apertures, one pair 26 being at the upper end of the member 25 and the other pair 27 being at the lower end of the member 25. The two pairs of apertures 26 and 27 are spaced from one another in a longitudinal direction by a distance substantially equivalent to the distance between the pin 16 in the upper portion of the main mold member and the pin 18 in the lower portion thereof. The apertures 26 and 27 of each pair are spaced with respect to the smaller dimension of the closing member 25 by such a distance that the adjacent end faces of the side wall forming portions 12 and 13 of each main mold member will be in substantial registry with one another when the three parts are placed in assembled relation.

At the lower end of the mold closing member 25 there is provided an aperture 28 forming a communicating passagebetween the two mold forming spaces on each side of the common counterpart 25 when the three parts are assembled. At the upper end of the member 25 there is suitably secured a sheet metal loop 29 to facilitate the handling of the member.

In using the apparatus above described for casting pigs, the several parts are assembled in a manner preferably substantially as follows: One of thema-in mold members, as the member 10 for example, is laid over in a horizontal position upon the floor, being supported by the legs 19 and 20 at the lower end thereof and by the abutment 21 at the upper end thereof. The position thus as sumed by the member 10 will be similar to its position when swung in a counter-clock wise direction and throughan angle of about ninety degrees, as viewed in Fig. 1 of the drawings. The edges or the end faces of the wall forming members 12 and 13 and of the bottom forming member will thus lie in a substantially horizontal plane and the pins 16 and 18 will project upward in a vertical direction. v

The common member 25 is thereupon placed upon the edges or end faces of the wall forming sections of the main mold member 10, the pins 16 and 18 registering each with one aperture of the pairs of apertures 26 and 27 respectively in the common mold closing member 25. The cooperating mold forming member 11 is thereupon placed upon the common closing member 25, the

pins 16 and 18 entering and registering- With the remaining hole of the pairs of apertures' 26 and 27 respectively. The two main members 10 and 11 operates also to align one mold member with the other so that the edges or end faces of the wall forming sections will be superimposed one upon the other, or will register with substantialaccuracy to permit a positive clamping action to take place between the two mainmembers l0 and 11. y

The several parts preferably still in a horizontal position and superimposed one upon the other, as above described, are thereupon securely clamped together by any suitable clamping device. A convenient form of clamping device is shown in Fig. 3 in which is illustrated a clamp of common form having a main yoke member 30 provided with a suitable laterally extending abutment 31 atone end thereof and witha manually operated screw 32 mounted in a laterally extending abutment at the other end thereof. The screw 32 has at its exterior end the wings 33 to facilitate a manual operation thereof and a relatively rotatable bearing memberBl at the interior end and substantially in alignment with the abutment 31. The clamping device is placed in such relation to the assembled parts of the molding apparatus as to have its operative portions,-

31 and 34 contact with the centrally positioned abutments or supports 24 in the reinforcing ribs 23 of the two main mold members l0 and 11. Upon securely tightening the clamping device, thus'giving the'assembled parts rigidity, the assembled molding apparatus may be swung through ninety degrees in a clockwise direction and into aposition as illustrated in Fig. 5, in which .it will be seen that the assembled molding ap-' paratus has assumed a substantially vertical position and is supported upon the two palrs of'legs 19 and 20, one pair being associated with each main mold member.

The assembled molding apparatus having been placed in an upright position as illustrated in Fig. '5, is now ready-to receive the molten metal, which is poured into one of the metal receiving spaces formed between one of the main mold members and the com mon closing member 25 and during the continued pouring of the metal into the one mold or metal receiving sp ace,,the.other mold or metalrec'e-iving space upon the other side of the common member 25 is. being The member 25 cooperating with the several pins in the two main mold simultane'ouslylfilled, the metal entering the latter space throughthe communicating passage-28 in the lower part of the interposed member 25. i Y The two metali'receiving spaces "or molds, having been filled, thefmolds and, the two cast pigs or ingotsareiallowed to cooLj-Thei coolinglribs-22 are effective to increase the surface ofradiation' of heat from each main mold member and are assisted in thisaction by the rein-forcing ribs 23. The interposed member 25 extending to the middle and hottest portion of the soft metal and .plo--.

jecting beyond the main mold members funetions alsoat its-projecting portionsas a cooling vane to assist in a rapid radiatiouof heat from the structure. Preferably the sheet 25'is -made of ametal that is a good conductor of heat, and having a higher melt ing point than type metal, it is highly effective in bringing about a-rapid coolingpf the'parts. Furthermore-this high heat con i ductivityzof the member 25 causes the molten with,-' thus preventing the soldering ofthe. metal to the sheet member. If desired, '-a n metal to become chilled as itcontacts there- 7 I suitable means may be employed to bring about a circulation of air. about the assembled structure and for thispur'pose anordinaryelectric ventilating fan may be conveniently employed.

Upon the requisite ing taken place, the parts-are readilydis.- assembled, this disassembling taking p'lace preferably after the assembled molding apparatus is returned to a. horizontal position upon the floor beingsupported by apairof legs 19 and 20 and'an abutment 21 at the upper end-thereof. The clamping device is thereupon removed and the several parts separated. In order to facilitate thejhandlingof the various parts when in a heated condition, each. main mold member is provided with suitable eyes-or apertures, such as 35,in-the upper exterior end, and 36in the lowerexdegree of cooling hav i terior end, these eyes being conveniently conveniently employed for engaging the several parts at the eyes. The metal loop 29 secured to one end of the sheet metal member 25 facllitates the engagement of the hook portion 38 of the hand 'toolwiththe member 25. 4

1 The interposed common closing amemb'er 25 isepreferiably made of a sheet" material such as sheet steel, 'as-hereinbefore noted,

and the -intercommunicating passage- 28"" therein is-preferablymade ofarelatively small diameter. The two pigs upon-cooling will ,becnnited'by a. slug of metal .corresj sponding in diameter to the cross-section of the communicating channel 28 in the sheet metal member 25, and in length to the thickness of the member 25. These dimensions, however, being relatively small, permit the two pigs to be readily broken apart and the projection or remnant of the connecting slug left attached to each pig'is of such small dimensions as to be negligible or as to be readily removable.

It will thus be seen that there has been provided in this invention a simple and practical molding apparatus characterized not only by simplicity of manufacture, but

also by simplicity of operation when in use.

It will further be noted that in this apparatus the several objects of the invention, as well as many advantages, tained. V

As many possible embodiments may be made of this invention, and as many changes might be made in the embodiment above set forth, it will be understood that all matter herein set forth is to be interpreted as illustrative and not in a limiting sense.

'I claim as my invention:

1. In apparatus of the character described, in combination, a mold including a pair of cooperating and separable parts adapted when in assembled relation to receive a molten metal, a member interposed between said parts for dividing the molten charge received by said parts into two pigs, means for aligning each of said parts with the said member and thereby with the other part, and means for clamping said parts and said interposed member together.

2. In apparatus of the character described, in combination, a mold including two separable and disconnected arts adapted to form therebetween a space for receiving a molten metal, a member interposed between said two parts, means on each of said parts adapted to register with said interposed member thereby to align one part with the other, and means for holding said aligned parts together.

3. In apparatus of the character described, in combination, a mold including two separable and disconnected parts adapted to form therebetween a space for receiving a molten metal, a pin mounted on each part and projecting toward the other part, a member having a plurality of apertures interposed between said two. parts, said pin on each of said parts entering a corresponding aperture in said member thereby to align one part with the other, and means for holding said aligned parts together.

4. In apparatus of the character described, in combination, a mold including two cooperating and separable parts adapted to form therebetween a space for receiving a molten metal, a pair of spaced diagonally have been at-- opposite pins on each part and projecting toward the other, a member having two pairs of apertures in spaced relation interposed between said parts, said pins on each of said parts registering with corresponding apertures in said member thereby to align one part with the other, and means for clamping-said aligned parts-together.

5. In apparatus of the character described, in combination, a mold including two cooperating and separable parts for receiving a molten metal, a thin partition interposed between said two parts for dividing the space therebetween into two metal receiving spaces, a perforation through said partition in the lower portion thereof forming a communicating channel between said two metal receiving spaces, and means for holding said parts and said interposed means together.

6. In apparatus of the character described, in combination, amold including two coun terpart separable parts for receiving molten metal, a sheet metal member interposed between said two parts for dividing the space therebetween into two separate metal receiving spaces, a perforation in the lower portion of said sheet metal member forming a communicating channel between said two metal receiving spaces, and means for se-, curing said parts and said member in assembled relation.

7. In apparatus of the character described, in combination, a mold including two cooperating and separable parts for receiving a molten metal, each of said parts having a plurality of exteriorly positioned pins projecting toward the other part, a sheet metal member interposed between said two parts for dividing the space therebetween into two separate metal receiving spaces, said sheet metal member havinm a plurality of apertures adapted to receive said pins on said parts thereby to align said parts with one another, a passage in the lower portion of said sheet metal member forming a communicating channel between said two metal receiving spaces, and means for clamping said parts and said member together.

8. In apparatus of the character described, in combination, a mold including two cooperating and separable parts for receiving a molten metal, each of said parts being provided with a plurality of cooling vanes a sheet metal member interposed between said two parts for dividing the space there between into two separate metal receiving spaces, said interposed sheet metal member extending exteriorly beyond said cooperating parts thereby to form also a cooling vane, and means for clamping said parts and said member in assembled relation.

9. In apparatus of the character described, in combination, a mold including two cooperating and separable parts for receiving a molten metal, each of said parts being provided with a plurality of cooling vanes, a sheet metal member interposed between said two parts, said member extending exteriorly beyond said two parts thereby to form also a cooling rib, means on each of said parts adapted to register with said interposed member thereby to align one part with the other; and means for clamping said aligned 1 parts together.

In testimony whereof, I have signed my name to this specification this fourth day of November, 1921.

HENRY o. ZENKE. 

